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CIHM/ICMH 

Microfiche 

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2 

3 

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2 

3 

4 

5 

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SMITHSONIAN   INSTITUTION. 

UNITED   STATES    NATIONAL   MUSEUM. 


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NEW  SPECIES  OF  NORTH  AMERICAN  COLEOP- 
TERA  OF  THE  FAMILY  SCARAB/EID^. 


BV 


MARTIN   L.  LINELL, 

Aid,  Departmtnt  of  Insects. 


From  the  Proceedings  of  the  United  States  National  Museum,  Vol.  XVllI,  pages  721-731. 

[No.  1096.] 


\j^ 


WASHINGTON: 

GOVERNMENT   PRINTING   OFFICE, 
1896. 


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NEW  SPECIES    ('F    NOUTir    AMERICAN    COLEOPTKRA    OP 
THE  FAMILY   SCARAB.EID.E. 


By  3tATlTlN    L.   LiNELL, 

Aid,  Ihitartment  of  Inaeola, 


In  rearranging  the  TJ.  S.  National  Museum  collection  of  North  Ameri- 
can Coleoptera  of  the  family  Scarabieida*,  a  certain  number  of  forms 
were  met  with  among  the  recent  accessions  that  evidently  are  nnde- 
scribed  and  should  be  ])ut  on  record  as  additions  to  our  fauna.  It  Mas 
found  necessary  to  erect  a  new  genus  for  some  small  species  occurring 
in  the  Southwest.  A  few  notes  have  also  been  added  on  previously 
described  si)ecies. 

PINOTUS  COLONICUS,  Say. 

A  species  widely  distributed  in  Mexico,  which  diflfers  from  /*.  caroli- 
nus,  Linnaeus,  by  male  having  two  tubercles  on  the  front,  one  above  the 
other,  should  bo  added  to  our  Texan  fauna.  A  specimen  is  in  the 
National  Museum  collection,  taken  by  Prof.  0.  H.  Tyler  Townsend  in 
Brownsville,  Texas,  September  5,  1895. 

PSAMMODIUS  SCHWARZI,  new  species. 

Oblong,  parallel,  convex,  shining  reddish  brown;  vertex,  disk  of 
thorax,  and  sometimes  sutural  region  of  elytra,  piceous.  Head  mod- 
erately coarsely  asperate;  vertex  smooth.  Clypeus  broadly  and  deeply 
emarginate,  without  teeth;  sides  broadly  rounded;  gena'  obtuse, 
slightly  prominent.  Thorax  wider  than  long,  not  nnrrowed  in  front; 
sides  arcuate,  the  margin  indistinctly  crenulate;  anterior  angles  slightly 
prominent,  obtuse;  posterior  rounded;  base  slightly  arcuate,  with  vtiy 
deep  marginal  line;  disk  convex,  sparsely  and  finely  punctate,  with  au 
irregular  group  of  coarse  punctures  (from  8  to  15)  each  side,  and  a 
small  round  fovea  near  the  front  angles.  Elytra  as  wide  at  base  as  tlie 
thorax;  humeri  obtuse;  sides  nearly  parallel;  disk  deeply  striate,  striic 
distinctly,  somewhat  crenately  punctured;  intervals  convex,  smooth. 
Mesosternum  opaque,  densely  punctulate,  carinate  between  the  coxa*. 
Metasternum  smooth,  polished,  flattened  and  longitudinally  impressed 

Proceedings  c>(  tl.o  (Tuitcd  States  Nntioniil  MuseHin,  Vol.  XVIII— No.  lOiiO. 

Proc.  N.  M.  05 40  721 


722 


NEfV  NORTH  AMERICAN  COLEOPTERA-  TANELL. 


VOL.  XVIII. 


at  inidtlle.  Abdouieu  nearly  sniootli,  with  a  few  coarse  punctures  at  tlio 
sides,  the  last  segments  with  strongly  crenato  basal  margin.  Femora 
equally  incrassate,  smootli.  Anterior  tibia;  strongly  tridentate;  pos- 
terior moderately  stout,  exi)anded  at  tip,  with  three  rows  of  small 
asi)erate  tubercles  but  no  oblique  ridges.  The  i)osterior  tarsi  nearly 
as  long  as  the  tibia;  the  joints  decreasing  in  thickness;  the  first  one 
hardly  wider  toward  apex,  angular  but  not  compressed,  slightly  arcu- 
ate, fully  as  long  as  the  tliree  following  together  which  are  subequal  in 
length,  a  little  longer  than  thick,  constricted  at  base;  last  joint  as  long 
as  third  and  fourth  together. 

liCngth,  3.0  mm.  Seven  examjjles  from  Jacksonville,  Florida  (col- 
lected by  Mr.  William  H.  Ashmead),  are  in  the  collection  of  Hubbard 
and  Schwarz,  two  of  which  these  gentlemen  have  presented  to  the 
National  Museum. 

Types.— ISo.  55J),  U.S.N.M. 

This  species  has  more  strictly  the  generic  characters  of  Pleurophorua 
in  the  hind  tarsi,  but  must  be  placed  near  Psammodiufi  bidens,  Horn, 
as  the  nearest  ally  in  our  fauna.  It  has  the  same  shape  as  this  si)ecie8, 
but  is  slightly  larger  and  lighter  in  color. 


n 


APHODIUS  COQUILLETTI,  new  species. 

Shining  ferruginous,  with  lateral  and  basal  margin  of  thorax  and 
ely tral  suture  narrowly  black ;  tibiae  and  base  of  tarsi  iufuscate.  Head 
convex,  finely  punctate,  without  tubercles  or  clypeal  ridge.  Clypeus 
slightly  rugose,  concave  at  middle;  nmrgiu  broadly  emarginate,  with 
a  strong  acute  tooth  each  side;  sides  irregularly  arcuate,  strongly 
fimbriate;  gense  prominent,  subangulate.  Thorax  with  the  sides 
fimbriate,  broadly  explanate,  foveate  near  the  obtuse  hind  angles; 
base  distinctly  margined,  arcuate  at  middle,  emarginate  each  side  at 
the  angles;  disk  convex,  finely,  not  very  densely,  punctate;  explanate 
sides  coarsely,  rugosely  punctate.  Elytra  glabrous,  fimbriate  at  mar- 
gin; humeri  obtuse;  strise  fine,  vaguely  imnctate;  intervals  minutely 
rugose,  with  coarse,  irregularly  biseriate  punctures.  Ventral  surfiice 
finely  pubescent,  8[)arsely  punctate.  Anterior  tibiie  smooth  in  front, 
very  strongly  tridentate,  not  crenulate  above;  spur  slender,  curvate; 
first  tarsal  joint  very  short.  Posterior  femora  sparsely  punctate; 
tibije  with  unequal  spiuules,  the  first  tarsal  joint  not  longer  than  the 
two  following  together. 

This  species  belongs  to  Group  I  of  Dr.  Horn  and  resembles  A.  mili- 
taris,  LeConte,  but  is  larger  and  has  the  sides  of  thorax  distinctly 
explanate  and  the  posterior  angles  are  distinct,  although  obtuse.  It 
differs  from  A.  rudis,  LeConte,  in  having  distinct  basaL  margin  of 
thorax  and  ditterent  punctuation. 

Length,  6.5  mm.  One  example,  Los  Angeles,  California,  collected  by 
Mr.  D.  W.  (Joquillett. 

TyiJe.— No.  500,  U.S.N.M. 


««► 


IIW. 


I'llUCEEDINGS  OF  THE  NATIOSAL  MUSEUM. 


723 


OCHODi^US  MANDIBULARIS,  new  species. 

Ovul,  pale  ferruginous.  Meiitum  elongate,  eonvex,  only  inipresHed 
at  apex.  Prosternuni  short,  ujiindibles  strongly  but  obtusely  angu- 
lated  on  exterior  margin  just  before  middle.  Clypeus  with  rounded, 
simple  margin;  at  base  with  a  strong  acute  horn;  frontal  suture  indis- 
tinet.  Front  sparsely,  moderately,  finely  i)unt'tate,  not  rugose;  vertex 
without  ridge.  Thorax  densely  punctato  granulate,  a  round  im})reHsiou 
at  side  and  median  line  impressed  at  basal  half.  Elytra  striate;  striie 
punctate;  intervals  feebly  convex,  punctate;  sutural  angles  obtuse. 
Ventral  surfa<!e  sparsely  imnctate.  Femora  simple;  hind  tibiae  slen- 
der, strongly  fimbriate;  flrst  tarsal  joint  as  long  as  the  three  following, 
slender,  slightly  curvate. 

Length,  7  mm.  One  example,  collected  July  19  at  V/iuslow,  Arizona 
(Wickham). 

Type.—lSo.  561,  U.S.N.M. 

Keserables  O.frontaHH,  LeConte,  in  form  and  color,  but  is  larger  and 
distinct  by  the  arcuate  clypeus,  the  dentate  mandibles,  the  strong 
frontal  horn,  situated  higher  up  on  the  front  than  the  small  clypeal 
tubercle  in  0.  frontalis,  and  the  total  absence  of  vertical  carina.  I 
have  seen  an  exactly  similar  specimen  from  Las  Oruces,  New  Mexico, 
in  tlie  collection  of  Messrs.  Hubbard  and  Schwarz. 

BRADYCINETUS   MINOR,  new  species. 

Dark  ferruginous ;  head,  margins  of  thorax  and  elytra,  suture,  tibial 
and  tarsi  darker.  It  differs  from  B.  hornii,  Rivers,  in  possessing  a 
larger  antennal  club;  clypeus  and  fiont  more  narrow  in  proportion  to 
their  length,  the  former  with  margin  less  rounded,  subangulate  at  the 
sides;  thorax  more  shining,  somewhat  more  sparsely  punctato;  scu- 
tellum  more  narrow  and  smooth ;  elytral  strite  distinctly  more  coarsely, 
less  closely  punctate;  intervals  narrow,  convex.  Hind  tibije,  spurs, 
carinae  of  head  and  thorax,  the  form  and  lateral  margin  of  the  latter 
exactlj'  as  in  the  female  of  B.  hornii.  Middle  tarsi  with  flrst  joint  as 
long  as  the  two  following  together  (in  B.  hornii,  as  the  three  following). 

Length,  7.5mm.  One  female  collected  by  Mr.  E.  A.  Schwarz  at  San 
Diego,  Texas,  May  26,  1895. 

Type.—^o.  562,  U.S.N.M. 

Bolboceras  farctun  and  B.  tumef actus  of  our  lists  have  the  eyes  com- 
pletely and  broadly  divided  and  should  not  be  congeneric  with  B.  laz- 
arus,  Fabricius. 

GYMNOPYGE,  new  genus. 
(Group  Dichelonychini.) 

Mouth  parts,  ventral  segments,  and  coxae  of  same  structure  as  in 
Dichelonycha.  Elytra  short;  humeral  umbone  prominent;  base  con- 
jointly, broadly  emargiuate;    side   margins   expanded  vertically  or 


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724  yjify  sftnrii  amkiucan  coleoptkra—linkll.      vclxvih. 

broadly  lobiMl  at  basal  balF,  stronf;Iy  conviTfjont  posteiioily;  apices 
separately  roniuled.  Winj^s  ample  (in  all  three  species).  Propygidiiim 
entirely  exposed.  l>o<ly  sbort,  in  front  narrowed  more  or  less  strongly. 
Abdomen  gibbous.  Legs,  and  especially  tarsi  and  claws,  less  elongate. 
Posterior  tibia-  short  an«l  stout,  with  iin  obli<pie  spinous  ridge  behind 
middle  on  the  exterior  side,  and  lower  edge  serrate  and  spinous. 
Tjipe. — (i.  hop  I  i  (('for  HI  in,  new  species. 

GYMNOPYGE    HOPLI/EFORMIS,  new  species. 

(/val,  strongly  narrowed  in  front,  brownish  testaceous,  head  and 
thorax  piceous,  hirsute  with  whitish  hairs,  longer  on  ventral  surface; 
long,  appressed,  white  hairs  on  sides  of  abdomen  and  propygi<lium. 
Anteiiuie  9 Jointed,  ferruginous;  club  bhick.  Head  rugosely  punc- 
tate; clypeus  short,  separatetl  by  a  straight  impressed  suture;  margin 
strongly  retlexed,  truncate  in  front;  side  angles  rounded.  Thorax 
strongly  convex,  broader  than  long,  emarginate  at  apex;  sides  obtusely 
subangulate  just  behind  the  middle;  hind  angles  very  obtuse;  base 
arcuate;  disk  coarsely  but  not  densely  puiuitate,  a  long  hair  arising 
from  each  puncture.  Scutellum  broad,  rountlod,  punctate.  Elytra 
rugosely  punctate  and  hairy;  sutural  stria  somewhat  distinct  and 
traces  of  three  or  four  more  striie  on  the  disk.  Propygidium  finely 
punctate,  densely  covered  with  long  appressed  white  hairs;  pygidium 
convex,  shining,  sparsely  punctate  at  base,  smooth  at  apex.  Ventral 
surface  sparsely  and  finely  pun(!tate.  Metasternum  at  sides  more 
coarsely  punctate.  Front  tibioi  with  upper  tooth  obsolete;  hind  tibiie 
very  stout,  asperately  punctate  and  coarsely  serrate  on  the  inferior 
margin ;  tarsi  short,  claws  moderately  long. 

Length,  5  to  6  mm.  Numerous  examples  collected  by  Mr.  D.  W. 
Coquillett  in  Mohave  Desert,  Kern  County  and  Los  Angeles  County, 
California.  An  individual  from  San  Diego  is  entirely  black,  but  does 
not  difter  otherwise. 

Tyjie.—^o.  563,  U.S.N.M. 

GYMNOPYGE    PYGM/EA,  new  species. 

Elongate  oval,  sparsely  hirsute,  narrowed  in  front,  pale  ferruginous. 
Anteunal  club  black.  Head  piceous,  thorax  infuscate.  Antenna? 
8  jointed;  claws  of  posterior  tarsi  short;  anterior  tibise  distinctly  tri- 
dentato.     Elytra  sparsely,  irregularly  subseriately  punctate. 

Length,  5  mm.  Two  examples,  southwestern  Utah.  (From  Charles 
Palm,  of  New  York.) 

Types.— ^o.  504,  U.S.N.M. 

GYMNOPYGE    COQUILLETTI,  new  species. 

Oval,  hirsute,  narrowed  in  front,  pale  ferruginous.  Antennal  club 
and  head  piceous,  tarsi  slightlj'  infuscate.  Differs  from  G.  hopUcv/ormig 
in  larger  size,  more  elongate  form,  head  cribrate  with  indistinct  clypeal 


!► 


IWS. 


rnovEKuistis  <tF  riiic  xati  tXAL  Mrsh:r.yr. 


72r) 

Kuturi>)  anteriur  tibia-   tiidrntato,  antciiiiii'  8 jointtMl,  sciitclliiiii  iiioru 
iniirow,  not  transvcrst*,  and  hiiul  tibia'  Iiardly  as  st(Mit.     Klytia  sub 
nipKSt'ly  lanictate,  with  faint  tratos  of  stria*. 

LiMifftli,  7  nun.  One  cxainplo,  Colorado  Dt'sert,  San  Diop)  County, 
California,  collocti'd  by  Mr.  I).  W.  Cocjuilb'tt. 

Typc.—^o.  505,  IJ.S.N.M. 

DIPLOTAXIS    RUFA,  new  species. 

Ovato,  sliffhtly  broader  boliind,  lufoferrn^jinous,  sliininj';  jjlabrons 
above.  Front  and  clypons  (!onvex,  cribratoly  punctate;  the  latter 
8ubrectangular,  truncate,  margin  narrow,  but  distinctly  retlexed. 
Antenine  testaceous,  10  jointed,  club  as  loiij?  as  the  funicle.  Thoiax 
one-half  broader  than  lonjj:,  narrowed  in  front,  coarsely,  moderately 
closely  punctate;  sides  obtusely  8uban<;ulato  at  middle,  slightly 
sinuate  before  and  behind;  angles  acute;  impressions  at  the  angles 
feeble.  Scutellum  sparsely  punctate.  Elytra  coarsely,  but  not  very 
densely,  jmnetate;  stria-i  regular  at  the  sides;  punctures  confused  on 
the  intervals;  costic  with  a  series  of  minute  punctures.  Pygidium  and 
ventral  surface  coarsely  i)unctate,  the  punctures  with  short  hairs. 
Legs  setose,  femora  8i)arsely,  moderately  coarsely  punctate;  tibiae, 
esi)ecially  of  the  posterior  legs,  roughly  punctate;  the  anterior  tibiic 
with  upper  tooth  very  small,  the  others  strong,  acute;  the  anterior 
tarsi  moderately  long;  the  middle  tarsi  very  long  and  the  posterior 
tarsi  short,  with  basal  joint  incrassate,  roughened;  claws  cleft,  the 
inferior  part  broader,  with  recurved  apex. 

Length,  t)  mm.    Three  examples,  Georgiana,  Florida. 

Types.— :^o.  5()(J,  U.S.N.M. 

This  species  resenddes  />.  subcostala,  Blanchard,  in  the  form  of  thorax, 
but  is  smaller,  has  the  thorax  less  constricted  and  more  coarsely  i>unc- 
turod,  and  the  convex  cribrose  head  with  truncate  clypeus  is  entirely 
different. 

Note. — In  comparing  the  original  descriptions,  I  have  conic  to  the 
conclusion  that  JJiplotaxis  castanea,  Burmeister,  is  identical  with  J).suh- 
costata,  Blanchard,  U.georgkv,  Blanchard,  Avith  I).  Uberta,  Cermar,  and 
corpulenta,  Burmeister,  with  B.  tristis,  Kirby.  The  last-mentioned 
names  in  each  case  have  the  jiriority. 

LACHNOSTERNA    ELONGATA,  new   species. 
(Group  Ephelida,  Horn.) 

Very  elongate,  cylindrical,  finely  and  sparsely  pubescent;  rufotesta- 
ceous,  moderately  shining.  Head  as  broad  as  anterior  margin  of  tho- 
rax, infuscate,  convex,  densely  and  coarsely  i»unctate,  witn  margin  mod- 
erately reflexed,  distinctly  emarginate.  Antennse  10-jointed.  Thorax 
rather  short,  eveidy  convex,  linely  and  densely  punctate;  sides  strongly 
arcuate  and  narrowed  in  front,  parallel  behind;  anterior  angles  obtuse, 
posterior  rectaugular.    Elytra  subopaque,  finely  and  densely,  somew  hat 


<► 


726 


NKIV  SOUTH  AMKlilCAN  COLKni'THIlA—llSKLL.         vol.  xvm. 


\l\ 


h 


i'^' 


■  I 


H 


niffosely  imnctato,  (lisral  rostn'  ftiiO)!*'.  I\v>fi<nn?n  very  ronvpy,  lonjjcr 
tliiiii  broiul,  iiiiiTowi'tl  toward  aix'x,  ratlior  coiirsely,  not  donscly  |iunc- 
tttU\  MefastiM-miin  spais(!ly  liairy,  Hiiely,  not  dcnNely  |tuii(tatc.  Claw-s 
with  a  t'c>(>l>lu  sulibaHal  tootli. 

Mnh; — Antrnnal  club  Hlinlitly  lonotM*  than  tlio  ston).  Abdomen 
8li^litly  tlattoned;  ponnltiinate  so^niuMil  broadly  (Miiar^'inate,  with  the 
mar},'in  at  nii<Idlo  depressed,  slifjiitly  ronj;hene(l ;  last  s<'fjinent  trnncat*', 
vagtu'ly  (ioneave,  sparsely  }i;ranulate.  Fixed  tibial  spur  veiy  short; 
outer  lonj;,  lanceolate.  (Jlaspers  sy  in  metrical,  <let,.!y  biUd,  the  outer 
branch  short,  lateral,  the  inner  biant^h  lon^,  strai};'i)t,  with  a  strong  tooth 
towanl  ai)ex  on  inner  side. 

Length,  l(i  mm.  Two  nude  examples,  l<'lorida.  ac<!es»ion  li31o3  (from 
Charles  Palm  of  New  York). 

7'^2,t'«._jfo.  507,  IJ.S.N.M. 

LACHNOSTERNA  PARVA,  new  species, 
((jiroiip  Uphvl'ulii,  Horn.) 

Very  eloufifate,  cylindrical,  dark  brown,  shininpf,  glabrous  above. 
Head  piceous,  short,  moderately  broad,  deeply  and  si)arsely  punctate; 
clyi)eus  short,  concave,  Hi)ar.sely  punctate,  with  nuirgin  moderately 
rcHexed,  feeldy  emarginate.  Antennae  10-jointed.  Thorax  short, 
evenly  convex,  sparsely  and  not  coarsely  punctate;  lateral  margiiiH 
parallel  behind,  strongly  rounded  in  front;  anterior  angles  obtuse, 
l)osterior  rectangular.  Klytra  rather  <'oaraeIy,  rugosely  punctate; 
discal  costal  very  feeble.  Pygidiiim  narrowed  toward  apex,  as  long 
as  broad,  densely,  moderately  coarsely,  punctate,  smoother  at  apex. 
Metasterr.um  densely  and  linely  puncitate,  with  long  hairs.  Abdomen 
sparsely  and  finely  punctate.  Claws  with  a  small  acute  tooth  before 
the  middle. 

Male. — Antennal  club  longer  than  the  stem.  Abdomen  flattened 
along  the  middle;  penultinnite  segnient  asperatcly  rugose,  broadly 
ennirginate,  obliquely  pli(!ate  each  side;  last  segment  deeply  concave 
at  middle,  with  an  elevated  cusp  each  side  near  the  margin  within  the 
concavity.  Fixed  spur  very  short,  nearly  atrophied;  outer  spur  long, 
slender.  Claspers  synimetrical,  short,  undivided;  apices  triangular, 
obtusely  pointed,  grooved  on  the  outside. 

Length,  12  mm.  Two  male  examples  (accession  23.S53)  from  Mr. 
Charles  l*alm,  of  New  York. 

Types.— ^o.  o(iS,  U.S.N.M. 

This  species  re.semblea  L.  hoops,  Horn,  in  size,  color,  and  form,  but 
has  entirely  different  structural  chara(tters. 

LACHNOSTERNA  ALPINA,  Schwarz,  MSS. 

(Group  Fiisea- Fratenia ,  Horn.) 

Ovate,  robust,  broader  behind,  rufocastane(ms,  shining.  Head  small, 
slightly  convex,  piceous,  moderately  dens»^ly  and  finely  punctate; 
clypeus  flat,  rather  densely,  not  coar.sely  iv,:ictate;  distinctly  emar- 


i»\n. 


pnociiKitiNds  OF  nui  i\ATn ty.iL  mtsi:i  wr. 


727 


fj;inatR;  itiiirgin  iuiin)wly  lellexod.  Thoiux  short,  lnoadest  at  base; 
Hides  broadly  loiuidtMl,  seriatim  iiiul  spaisoly  <'iliat«>;  i\\h'K  iiiiu'li  widiu* 
than  the  lu>ad;  anterior  ati^h^s  slightly  prodiiciMl:  piiiict nation  evenly 
distrihnted,  moderately  eh»sely  plaeeil,  rather  line;  punetnres  leet>ly 
innbilieate.  Sentellntn  sparsely  and  linely  punt^tale.  I^'lytra  not  fim- 
briate, llnely,  not  closely  |)nnetate,  transversely  rngose  near  tln^  snturo 
und  behind  the  humeral  umbones.  1\>  <;idi(im  transverse,  sparsely  and 
ttiiely  pnnetate,  Metasterniim  very  densely  punetulate,  with  lon^', 
dcuise,  yellow  hairs.  Abdomen  sparsely  and  obsoletely  punetulat*'. 
Posterior  tibia'  slemhM-,  witli  very  t'eolih  ridges.  (3Iaws  stronj^ly 
curved;  tooth  snbmedian,  snail,  acute,  (iast  Joint  of  nuixillary  pali^i 
lUHiform,  not  impressed. 

Mah'. — Antennal  club  nearly  as  lonf>'  as  the  stem.  Abdomen  flat- 
tened at  ndddle;  penultimate  sejiinent  witli  a  stronj;'  ar(!uate  rid<i:e, 
distant  from  apical  nuirp;in;  last  segment  with  a  cu[iuliforni,  smooth 
fovea.  I'Mxed  spur  spatulate,  about  half  as  long  as  the  slender  exterior 
spur.  The  elaspers  retsall  those  of  L.  ilubin,  Smith,  but  are  much 
smaller  and  less  twisted. 

Tins  spe<'ies  resend)les  A.  irrnns,  but  has  a  dilferent  clypeus,  much 
finer  punctuation,  nonlind)riate  elytral  margin,  slender  tibia'  ainl 
ditterent  sexual  chara<;ter8.     (Note  on  habits,  sve  Schwarz.') 

Length,  about  l.Siiun. 

I  have  examined  four  male  exaniples,  collected  near  Alta,  [I tali,  at  an 
elevation  of  1>,000  to  11,(K)0  feet,  by  Messrs.  E.  A.  Schwar/,  and  11.  (1. 
Hubbard.  One  has  been  presented  to  the  National  Museum  by  these 
gentlemen. 

Type.—^o.  rm,  U.8.N.M. 


LACHNOSTERNA    GRANDIOR,  new  species. 
( Grdup  fuHca-yuijom,  Horn. ) 

Hobust,  ovate,  depressed  above,  rufocastaneous,  shining.  Head 
broad,  very  densely  punctate;  elypeus  (as  in  L.  hnrtla,  Horn)  flat, 
densely  punctate,  deeply  em.arginate;  margin  narrowly  but  distinctly 
reHexed.  Antenna'  10-jointed.  Tlun-ax  very  short  and  broad,  slightly 
narrowed  behind,  coarsely  and  densely,  but  not  contluently,  punctate; 
punctures  umbilicate;  median  line  smooth;  side  margins  serrato,  sub- 
angulatc  at  middle  ami  convergent  in  front;  anterior  angles  subobtuse. 
Elytra  finely  punctate,  slightly  rugose;  sutural  and  nmrginal  costal 
Avell  defined,  the  others  obsolete.  Pygidium  rounded,  sparsely,  vaguely 
punctate.  Mctasternum  densely  punctate,  with  long,  moderately  dense 
hairs.  Abdomen  sparsely  ami  tijudy  punetulate.  Claws  with  a  strong 
median  tooth.    La.-M>  joint  of  maxillary  i>alpi  fusiform,  not  impressed. 

Mole. — Antennal  club  as  long  as  the  stem.  Abdomen  flattened  at 
middle;  penultimate  segment  broadly  emarginate,  with  a  strongly  ele- 
vated rugulose,  anaiate  ridge,  behind  which  is  a  deep,  broad  excava- 


<V 


Proc.  Ent.  Sec.  Wiisli.,  II,  p.  242. 


il 


i7    I 
i     ^ 

hi 


<   ') 


■I 


i  ■  r 


728 


NEW  NORTH  AMERICAN  COLEOPTERA—LINELL. 


VOL.  XVIII. 


tion;  last  sej^ment  Lroiidly  coiicavo.  Fixed  si)ur  triangular,  acute; 
exterior  spur  one-lialf  longer,  slender.  The  ehifspers  are  unsyniiuetrieal, 
liij;lily  developed,  associating  the  s])ecies  with  the  hornii-rugom  group, 
but  they  are  still  more  twisted  than  in  any  previously  described  species. 

Length,  -i>  mm. 

Type. — No.  570,  U.S.N.M.  One  example,  Shrevei)ort,  Louisiana; 
collected  by  F.  W.  Iklally. 

This  species,  the  largest  Lachnostenia  in  our  fauna,  resembles  in  form 
L.  quadnita,  Smith,  but  is  nuu'h  larger,  has  different  clypeus  and  punc- 
tuation, but  thorax  particularly  distinguishes  them,  being  subangulate 
and  crenulate  in  L.  (jrawlior. 

LACHNOSTERNA   RUGOSIOIDES,  new  species. 
(Group  J'nsca-rufiom,  Horn.) 

Oblong,  broader  behind,  moderately  robust,  rut'ocastaneous,  shining. 
Antenna'  9-jointed.  Clypeus  densely  and  coarsely  punctate,  acutely 
emarginate;  margin  narrowly  retlexed.  Front  somewhat  less  densely, 
coarsely  punctate.  Thorax  widest  at  middle,  obtusely  angulate  at 
sides,  narrowed  at  base,  more  obliquely  narrowed  in  front;  margiu 
slightly  crenulate,  sparsely  ciliate;  disk  convex,  moderately  closely, 
coarsely  punctate;  punctures  umbilicate;  the  median  line  and  small 
sjiaces  on  each  side  smooth.  Elytra  finely  punctate,  rugulose;  discal 
costse  obsolete.  Pygidium  longer  than  in  L.  rugosn,  convex,  very 
shining,  sparsely  and  finely  punctate.  jNletasternum  densely  punctate, 
with  sparse  short  hairs.  Abdomen  sparsely,  obsoletely  punctulate. 
Claws  very  strongly  curved,  with  a  strong  median  tooth. 

j\ral€. — Antennal  club  very  short.  Abdomen  flattened  at  middle; 
penultimate  segment  with  a  straight,  acutely  elevated,  overhanging, 
transverse  ridge  at  middle,  and  the  posterior  nmrgin  broadly  and 
decjdy  con(;ave;  last  segment  concave,  asperately  granulate;  fixed 
spur  very  long,  slender,  fully  ecpial  in  length  to  the  exterior  spur. 
Claspers  aftei-  the  type  of  L.  nifiosa,  but  ditl'erentl}^  twisted,  and  the 
extreme  apices  i-rolonged,  acute,  and  recurved. 

Length,  18  mm.  One  example,  collected  by  myself  on  Long  Island, 
New  York. 

7//^>f.— No.  571,  U.S.N.M. 

This  species  resembles  su])erficially  a  small  L.  rugona,  but  is  abun- 
dantly distinct  by  the  characters  above. 

LACHNOSTERNA  MINOR,  new  species. 
((Jroiip  halia,  Horn.) 

Oblong,  slightly  broader  behind,  glabr<ms  above,  rufotestaceous, 
shining;  head  and  thorax  darker.  Clypeus  acutely,  but  not  deeply, 
emarginate,  moderately  closely,  imt  coarsely,  ]mnctate;  margin  rather 
narrowly  retlexed.  Front  more  densely  punctate.  Antennic  9  jointed. 
Thorax  convex,  narrowed  in  front;  sides  regularly  arcuate  from  base, 


wmm 


J  KIT). 


rnocKi'JDiNas  of  the  national  museum. 


729 


not  creiiate;  disk  moderately  closely  and  coarsely,  soniewliat  irregu- 
larly, punctate;  basal  channel  distiuctat  the  sides.  Elytra  alutaceous, 
slightly  rngiilose;  punctures  finer  and  more  closely  i)laced  than  those 
of  thorax.  Pygiilium  sparsely  and  finely  ])unctulate.  Metasterniim 
finely  and  densely  punctulate,  with  long  yellow  hair.  Abdomen 
sparsely  ]mnctulate  at  the  sides;  punctures  with  short  hairs.  Claws 
arcuate,  with  a  strong  median  tooth.  Last  joint  of  maxillary  i)alpi 
fusiform,  not  impressed. 

Male. — Antennal  club  as  long  as  the  stem.  Abdomen  longitudinally 
concave;  penultimate  segment  with  a  deep  semicircular  fovea,  each 
.side  of  which  is  an  oblicjue  elevated  cusj);  last  segment  with  an 
impressed  line  at  middle.  Fixed  spur  nearly  half  the  length  of  the 
exterior  one,  strongly  curvate.  Claspers  with  the  apices  long,  slender, 
acute,  strongly  curvate,  simi>le  on  the  right  (1  with  a  strong  inferior 
basal  hook  on  the  left. 

Length,  Ki  nun.  One  example  collected  by  Mr.  F.  F.  Crevecoeur, 
Oiiaga,  Kansas. 

Type.—^o.  572,  U.S.N.M. 

What  Professor  Smith'  figures  as  Lachnosterna  fratcrna,  female,  is 
the  female  of  L.  vora,  Smith.  The  real  female  of  L.  fmterna  has  the 
pubic  process  furcate  at  apex,  after  the  manner  of  X.  hipartita,  but  not 
quite  as  deeidy. 

A  male  of  Laehno-steriia  (liffinin,  Blanchard,  collected  by  Miss  Etta 
Braly  at  Fayetteville,  Arkansas,  has  the  antenme  l(>-jointed. 

PHYTALUS    CAVIFRONS,  new  species. 

Male. — Elongate,  cylindrical,  shining,  pale  rufo testaceous.  Head 
darker  in  color,  broad;  eyes  large;  front  convex,  moderately  coarsely, 
not  densely  punctate;  clypeal  suture  strongly  biarcuate,  >'ery  deeply 
inipresse<l  from  eye  to  eye;  clypeus  concave,  sjjarsely  i)unctate;  mar- 
gii;  broadly  refiexed,  rounded  at  the  sides,  slightly  emarginate  at  mid- 
<llo.  Antenna'  10-jointed,  second  Joint  globose,  third,  fourth,  and  fifth 
cylindrical;  sixth  and  seventh  transverse;  club  as  long  as  the  funicle. 
Last  Joint  of  maxillary  ]»alpi  large,  flattened  above,  subtruncate  at 
apex.  Thoiax  a  little  more  than  twice  as  wide  as  long,  a  little  nar- 
lowed  in  front;  sides  arcuate  at  middle,  not  crenulate;  base  without 
impressions,  finely  nnngined;  disk  convex,  regularly,  sparsely,  rather 
finely  punctate.  Elytra  slightly  wider  than  thorax,  sparsely  and 
liiely  punctate;  sutnral  costa  well  marked;  discal  costa'  distinct, 
smooth ;  submarginal  obliterated.  Tygidinm  convex,  sparsely,  vaguely 
punctate.  Frothorax  beneath  sparsely,  not  deeply,  punctate.  Meta- 
fiternnm  very  sparsely  clothed  with  short  hairs,  si)arse]y  i)nnctate  at 
middle,  a  little  more  densely  at  sides.  Abdomen  convex,  very  sj)arsely 
hairy,  almost  smooth  at  middle,  sparsely  ])nnctnlate  at  sides;  last  seg- 
ment with  a  cupuliform  fovea.     Legs  long  and  slender,  anterior  tibiae 


'Pioi\  r.  S.  \iU.  Murt.,  XI,  i>l.  1,1V,  fig.  43. 


(t 


T 


730 


NEW  NORTH  AMERICAN  COLEOPTERA—LINELL. 


VOL.  xvrir. 


1895. 


i.;  \ 


\v  r 


/« 


'/ 


r 


obtusely  tridentate,  upper  tooth  small,  apical  tooth  iu  the  axis  of  tho 
tibia,  obtuse  at  apex.  Posterior  femora  compressed;  tibia3  with  an 
oblique  fine  acute  ridge  at  middle,  furnished  with  long,  slender,  not 
closely  set  spines;  basal  ridge  very  short,  with  two  or  three  small 
spines;  apex  squarely  truncate  exteriorly,  with  a  dense  row  of  fine 
spines;  spurs  movable,  obtuse  at  .apex;  the  exterior  one  somewhat 
longer.  Tarsi,  esi)ecially  on  the  front  legs,  nuich  longer  than  tho 
tibif.^,  clothed  beneath  with  dense,  long,  somewhat  stiff  hairs.  Claws 
subequally  cleft,  inferior  part  a  little  broader  and  oblique  at  apex. 

Length,  12  mm.  Two  examides,  collected  May  24,  1895,  by  C.  H. 
Tyler  Townsend,  at  Brownsville,  Texas. 

TijpeH.—^o.  573,  U.S.N.M. 

Female. — Differs  from  the  juale  described  above  as  follows:  Color 
darker  ferruginous,  infuscate  on  head  and  thorax,  punctuation  dis- 
tinctly coarser  throughout,  dypeus  less  concave,  coarsely  and  densely 
punctate.  Antennal  club  slightly  shorter.  Pygidium  longer,  gibbose 
at  middle.  Last  ventral  convex,  subemarginate  at  apex.  Legs  shorter 
and  stouter;  anterior  tibia*  with  upper  tooth  stronger,  apical  tooth 
obliquely  truncate  and  notched  at  apex;  posterior  tibial  spurs  longer, 
more  lanceolate. 

One  example,  collected  Juno  1 1,  at  Brownsville,  Texas,  by  Prof.  C.  H. 
Tyler  Townsend. 

Type.—^o.  574,  U.S.N.M. 

LISTROCHELUS   PULCHER,  new  species. 

Male. — Ovate,  distinctly  broader  behind,  dark  rufocastaneous,  densely 
covered  with  a  silvery-gray  coat,  except  the  head,  disk  of  thorax,  hume- 
ral umbones,  apex  of  pygidiuni  and  legs ;  clothed  with  sparse,  short 
hairs  in  the  punctures.  Front  flat,  densely  and  coarsely,  not  conflu- 
ently  imnctate;  clypeal  suture  finely  impressed,  bisiuuate;  clypeus 
concave,  less  densely  punctate;  margin  semicircularly  rounded  and 
broadly  refiexed.  Anteuuie  ferruginous,  10-jointed;  club  longer  than 
the  funicle.  Thorax  nearly  twice  broader  than  long,  narrower  at  apex, 
convex,  shining  on  the  glabrous  median  part,  regularly,  moderately 
densely,  not  coarsely,  punctate;  sides  regularly  arcuate,  feebly  ser- 
rate and  fimbriate  with  long  hairs;  angles  obtuse.  Elytra  moderately 
coarsely,  sparsely  punctate ;  costal  obsolete;  margin  sparsely  fimbriate. 
Pygidium  convex,  sparsely  punctulate,  subtruncate  at  apex.  Meta- 
sternum  and  the  coxa>.  clothed  with  long,  dense,  yellowish  white  hairs. 
Abdomen  sparsely  aTid  finely  punctulate;  second  and  third  segments 
slightly  concave  at  middle,  fourth  with  a  median  transverse  gibbosity, 
longitudinally  strigose;  fifth  gibbous  at  base,  on  the  sides  with  two 
or  three  oblique  elevated  carina*,  strongly  constricted  on  apical  half; 
sixth  short,  transversely  constricted,  with  sparse  hair  bearing  punc- 
tures; apical  margin  ciliate.  Legs  moderately  stout,  sparsely  bristly; 
anterior  tibiie  strongly  tridentate.     Posterior  tibia;  scarcely  fimbriate. 


1805. 


PROCEEDINGS  OF  THE  NATIONAL  MUSEUM. 


731 


H. 


Spurs  rather  slender,  outer  broader  and  longer,  with  pelhicid  margin. 
Posterior  tarsi  longer  than  the  tibia;  tirst  joint  stout,  consti'icted  at 
base.  Claws  pectinate  along  a  double  margin ;  outer  anterior  claw  with 
a  strong  tooth  near  the  apex. 

Length,  17  mm.  One  example,  collected  by  C  M.  Porter,  in  Skid- 
more,  Texas,  April  2, 1895. 

Type.—^o.  575,  U.S.N.M. 

Female. — Form,  size,  and  sculpture  of  the  male,  but  differs  as  follows: 
Antennal  club  slightly  shorter.  Thorax  with  a  median  white  line  at 
base.  Pygidium  flat,  deeply,  longitudinally  channeled  before  apex, 
with  coarse  setigerous  punctures  at  and  near  the  margin.  Abdomen 
very  convex,  broadly  glabrous  and  polished  along  the  middle;  fifth  seg- 
ment constricted  at  the  sides,  with  a  round  gibbosity  at  middle  near 
apical  margin  and  with  a  transverse  row  of  setigerous  punctures  behind 
the  gibbosity,  interrupted  at  middle;  sixth  very  short,  coarsely  punc- 
tate. Anterior  and  middle  claws  with  a  strong  tooth  near  apex  and 
cojirsely  serrate  at  base.  Posterior  claws  dissimilar,  the  inner  without 
tooth,  i^ectinate,  the  outer  like  the  anterior  daws. 

One  example,  from  Texas,  in  collection  of  Mr.  II.  Ulke. 

This  species  differs  from  L.  mucoreun,  LeConte,  by  its  color,  broader 
form,  distinctly  broader  thorax,  more  concave  and  rounded  clypeus,  and 
the  sexual  characters  of  abdomen  and  pygidium. 


